H. G. Muller wrote on Sat, Nov 11, 2017 09:30 PM UTC:
That is indeed a good way of expressing it. An actual Pawn could be worth anything between 0.5 (isolated edge Pawn or doubled Pawn) and 2.5 (7th-rank protected passer) Pawn units. Note that most strong Chess engines, (which put enormous effort into optimizing their piece values) typically use 80cP as the Pawn base value (and 325, 325, 500, 950-1000 for N, B, R, Q), and then award separate bonuses for passers, depending on their advance (and whether they are protected), and penalties for being isolated, doubled or backward. So I guess 100cP corresponds approximately to an isolated, not-too-advanced passer. Protected passers are better, far advanced passers are better.
Note that a Rook is not able to stop two connected 6th-rank passers. OTOH, on a 10x8 board it has no trouble at all anihilating 5 isolated 2nd-rank passers.
That is indeed a good way of expressing it. An actual Pawn could be worth anything between 0.5 (isolated edge Pawn or doubled Pawn) and 2.5 (7th-rank protected passer) Pawn units. Note that most strong Chess engines, (which put enormous effort into optimizing their piece values) typically use 80cP as the Pawn base value (and 325, 325, 500, 950-1000 for N, B, R, Q), and then award separate bonuses for passers, depending on their advance (and whether they are protected), and penalties for being isolated, doubled or backward. So I guess 100cP corresponds approximately to an isolated, not-too-advanced passer. Protected passers are better, far advanced passers are better.
Note that a Rook is not able to stop two connected 6th-rank passers. OTOH, on a 10x8 board it has no trouble at all anihilating 5 isolated 2nd-rank passers.